Oil-well-cleaning appliance.



W. l. HOGUE.

OIL WELL CLEANING APPLMNCE.

APPLICATION min Nov. 4. 191s.

Patented Feb. 11, 1919.

VENTOR WILLIAM J. HOGUE, OF KANSAS CITY, MISSOURI.

OIL-WELL-CLEANING APPLIANCE.

Specication of Letters Patent.

Patented Feb. 11, 1919.

Application led November 4, 191B. Serial No. 261,088.

To all whom tl may concern:

Be it known that I, WILLIAM J. HOGUE, a

citizen of the United States, residing atV Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Oil-Well-Cleaning Appliances, of which the following is a specification.

This invention relates to oil well cleaning appliances of that class by which the interlor of the casing of the Well is cleaned by scraping action and the scrapings are forced upward throu h the casing by the circulation of a liqui therethrough, and my object is to produce an efficient appliance in which reciprocatory movement of a plunger member shall effect both oscillatory action of a series of sera er blades on the interior of the casing an umping action of a cleaning or flushin liquid up throu h the casing.

A further o ject is to provi e means sel adjustable to the interior diameter of the casing, for guarding against rotary action of the lunger member while being reciprocate scraper blades which adapt themselves to slight changes or irre larities in the interior diameter of the casing.Y A still further object is to provide means for effecting appreciable adjustment of the scraper blades for the 'accommodation of casin of considerable variation in diameter, wit out limiting the capacity of the scraper blades for accommodating slight changes or irregularit-ies in the interior diameter of the casgvith these general objects in view the invention consists in certain novel and useful features of construction and combinations of parts as hereinafter described and claimed; and in order that it ma be fully understood, reference is to be ad to the accom` panying drawing, in which:

Figure 1, is a view partly in side elevation and partly in central vertical section, of an oil `well cleaning appliance embodyingy the invention.

Fi 2, is a horizontal section on the line II- I of Fig. 1.

ig. 3, is a horizontal section on the line III-III of Fig. 1.

Fi 4, is an enlarged vertical section on the line IV-,IV of Fig. 2.

In the said drawing, where like reference characters identify corresponding parts in all of theA figures, l designates the casing of an oil well, the same being indicated in dotspring ted lines in Fig. 1, and in full lines in Figs. 2 and 3.

2 indicates a tube within the casing, the lower end of the tube being closed as by a plug 3 secured in place by screw 'bolts 4, and said plug is preferably provided with a drill bit 5 which not only has a drilling function but aids in holdin the tube 2 centralized in the casing w ile the former is being rotated for cleaning purposes, as hereinater explained. Just above the closure 3, the tube 1s provided with a series of' )et openings 6, and is provided with spiral slots 7 for simultaneous engagement by a cross pin 8 rigidly secured to a reciprocatory plunger member 9, the operation of the lunger member by hand power or otherwise, elfecting oscillatory rotatable action of the tube 2 through the travel of the pin 8 in the spiral slots 7. It being understood that the reciprocal-,cry action of the plunger member corresponds to the shortest distance between the upper and lower ends of the slots 7.

The member 9 must be of length to ex*- tend to the upper end of the casing and hence will be ordinarily composed of a plurality of sections, the drawing showing only the bottom section. Because it is usually of considerable length, it is desirable ro provide means for guarding against rotative action of the plunger member while being reciprocated andi hence insure rotative oscillatory action of the tube 2. To guard against rotative action of the plunger member 9, the same will be provided with one or more collars 10, each bein secured rigidly in place by one or more c ampingriolts 11, and pivoted to and rejecting m opposite sides of each colar are swing arms 12 through which extend horizontally bolts 13 forming journals for conical rollers 14 for tracking engagement with the interior wall of the casing. Secured upon each collar by the clam'pn bolt 11 is a clip 15, and clamped lagainst the collar by said clip is one convolution or coil of a spring 16, the

terminating in arms 17 which engage the swing arms 12 and exert force tending to swing said.' arms downward, and in order 'to prevent said arms from swinging downward to or below a horizontal osition angle plates 18 arev secured to 'the colar and are provided with extensions 19 underlying the inner ends of the swing arms 12, as shown clearly in Fig. 1.

near its upper end the tube blades in one t A collar 2O is secured by clampin bolts 21, firmly upon the tube 2 at any eslred point, and forms an abutment or resistance point for a coiled spring 22 fitting around the tube, and secured at their upper ends to the lower convolution of said spring is a series of semi-elliptic spring scraper blades 23, the lower ends of said blades bein secured firmly to the 'tube by means o the bolts 4, or in any other suitable manner. There are four of the scraper blades shown, but the number may be increased or diminished. The blades are bowed outwardly to the desired extent and under compression the spring 22 will yield, that is to say the blad upon encounterin a slight irregularity on the inner face o the caslng against which they are adapted to bear as shown in Fig'. 1, may ride over such irregularity, the blades of course rexpanding under the action of the spring 22 after passing such irregularity.

If it is desired to adapt the appliance for the operation of the blades within lar er or smaller casings, or the like, the col ar 21 will be adjusted downward or upward respectively, the downward adjustment increasing the bow and the upward adjustment permitting of a decrease in the bowing of the springs.

The reciprocation of the plunger member 9 will, as explained, turn the tube 2 first in one direction and then in the other, and hence cause the blades to shear or cut any accumulation of foreign material from the interior of the casing, and in order that such material shall be forced u-p through the casing, a spider 24 is secured in the lower end of the plunger member and is equipped with a cup valve 25 or its equivalent, adapted to o en as the plunger member moves u war to permit water or the like to pass own into the lower end of the tube 2, and to close under the resistance of such water. or the like as the plungr is moved downward, so that the latter s all act as a piston to forcibly eject' or pump water through the openingsv 6 and up through the casing.

With an appliance of this character a suit able cable may be carried to the plunger member with means whereby the plunger can be automatically raised and dropped so that the force of gravity, may be utilized in effecting the operation of the scraper direction and likewise for the discharge of water from 'the lower end of the tube. As means for raising and droping the appliances are old. in the art and or'm no part of this invention,.it has not been deemed necessary to illustrate or describe in detail such means.

From the above descri tion it will be a parent that I have p uced an oil well eaning applianceA which will vperform its function eiliciently, and which embodies the features of advantage set forth as desirable in the statement of the object of the invention, and while I have illustrated and described the preferred construction of the appliance, it is to be understood that I reserve the right to make such changes or modifications as roperly fall within the spirit and scope o the appended claims.

I claim:

1. An oil well cleaning appliance comprisin a tube having discharge openings, a tu ular reciprocatory plunger member within said tube and provided with a valve yclosing communication lbetween said tu'bular plunger member and the underlying chamber of said tube when said member is moved downward and opening such communication when the plunger member is moved upward, one or more lower scraper blades secured to the said tube, and means whereby reciprocatory movement of the plunger member shall eiect oscillatory movement of the blade carrying tube.

2. An oil well cleanin appliance comprising a tube having disc arge openings, a tubular reciprocatory plunger member within said tube and provided with a valve closing communicatlon between said tubular plunger member and the underlying chamer of said tube when said member is moved -downward and openinguch communication when the plunger mem r is moved upward, one or more bowed scraper blades secured to the said tube, means whereby reciprocatory movement of the plunger member shall eifect oscillatory movement of the blade carrying tube, and means for preventing rotating movement of the reciprocating plunger member.

3. A n oil well cleamn' g1 prising a tube having disc arge openings, a tubular reciprocatory plun er member within said tube and provided with a valve closing communication between sa'dtubular plunger member and the underlying chamber' of said tube when said member is moved and oper ng such communie tion when the plunger member is moved'upward, 'one or lmore bowed scraper blades? secured to the said tube, and a. spiral ideway and pin connection between the tu e and said plunreciprocatory moveappliance comger' member for causing ment of the latter to impart oscillatory movement to said tube. f

4. The combinationwith an oil well casing, of a tube litt" withn the caslng, one or more scraper' bla es carried by the tube and exerting yielding pressure a the casing, a reciprocatory member within said tube, means for preventin the reqiprocatory member from turning w e reci rocatrng, and means for ca the reciprocating member to impart t: ting movement to said tube.

downward 5. The combination with an oil well casing, of a tube fitting within the casing, one or more scraper blades carried by the tube and exerting yielding pressure against the casing, a reciprocatory member within said tube, means for causing the reciprocating member to oscillate the scraper blade carrying tube, swing arms carried by said reclprocating mem er, rollers carried by Said swing arms, and yielding means for exerting force on said swing arms to hold said rollers pressed firmly against the casing to prevent rotative movement without interfering with the reciprocating movement of the reciprocating member.

In testimony whereof I aix my signature.

WILLIAM J. HGUE. 

